CN103212798B - A kind of Laser Processing endovascular stent laser beam automatic correction device and method - Google Patents
A kind of Laser Processing endovascular stent laser beam automatic correction device and method Download PDFInfo
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- CN103212798B CN103212798B CN201210015713.6A CN201210015713A CN103212798B CN 103212798 B CN103212798 B CN 103212798B CN 201210015713 A CN201210015713 A CN 201210015713A CN 103212798 B CN103212798 B CN 103212798B
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Abstract
The present invention relates to technical field of laser processing, be specifically related to a kind of laser beam correcting unit and method.A kind of Laser Processing endovascular stent laser beam automatic correction device, including work platforms, work platforms is provided with column, column is provided with laser aid, work platforms is provided with the fixture for clamping support tubing, and laser aid is positioned at above fixture, also includes automatic correcting mechanism, automatic correcting mechanism includes X-axis travel mechanism, Y-axis moving mechanism, Z axis travel mechanism, X-axis travel mechanism, Y-axis moving mechanism, Z axis travel mechanism control end connect microprocessor system respectively；Under the control of microprocessor system, automatic correcting mechanism three-dimensional moves, and laser aid moves to the position that axis that its laser beam sent is positioned at support tubing is vertical.Owing to adopting technique scheme, the present invention ensures that the direction of laser beam remains that in cutting process the axis with tubing intersects vertically.
Description
Technical field
The present invention relates to technical field of laser processing, be specifically related to a kind of laser beam correcting unit and method.
Background technology
Along with various acute and chronic angiemphraxis disease serious threat human life's safety and healths, endovascular stent arises at the historic moment.Endovascular stent is a kind of metallic netted structural being implanted to vascular lesion position, in order to improve the blood flow state of diseased region, blood vessel plays the effect of support.Medicinal blood vessel internal support generally can pass through the sufferer place of insertion type operation implantable intravascular, and final and blood vessel laminating, therefore it is required that on medicinal blood vessel internal support on each muscle feature structural dimension parameter one show maintenance whole Medical rack each point on tension force identical, this to Medical rack processing technique propose requirements at the higher level.General Medical rack all adopts seamless tubular goods to be processed, consider that Medical rack seamless tubular goods adopts the technological method for processing such as drawing to produce, owing to the defect of technique is necessarily difficult to ensure that general length can caliber tolerance uniformity on the whole Medical rack tubing more than 2 meters.And the Medical rack tubing caliber tolerance entirety of Medical rack manufacturer needs to control in ± 10 μ m, actually due to processing and context of detection technical deficiency, inevitably change greatly even overproof problem at the difference place caliber of whole Medical rack tubing.
In Medical rack laser cutting parameter, ensure the feature overall processing quality such as all connecting rods, muscle, circular arc on whole Medical rack, require that the strict cutting head controlling cutting head lower end keeps immobilizing with Medical rack tubing distance, when so just can ensure that laser and Medical rack tubing effect, focus is on tubing level altitude, so that it is guaranteed that the concordance of each feature machining precision on whole Medical rack.
Kerf width and cut surface roughness value are had impact by laser light incident angle simultaneously, and therefore during cutting under ensureing the premise of axiality of pipe clamping, the direction of laser beam should keep the axis with tubing to intersect vertically.When beam direction off-axis is bigger, except affecting joint-cutting quality, also make cross sectional shape off-design requirement.
Summary of the invention
It is an object of the invention to, it is provided that a kind of Laser Processing endovascular stent laser beam automatic correction device, solve above technical problem.
Another object of the present invention is to, it is provided that a kind of Laser Processing endovascular stent laser beam auto-correction method, solve above technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of Laser Processing endovascular stent laser beam automatic correction device, including a work platforms, described work platforms is provided with column, described column is provided with laser aid, described work platforms is provided with the fixture for clamping support tubing, described laser aid is positioned at above described fixture, it is characterized in that, also include an automatic correcting mechanism, described automatic correcting mechanism includes an X-axis travel mechanism, one Y-axis moving mechanism, one Z axis travel mechanism, described X-axis travel mechanism, described Y-axis moving mechanism, the control end of described Z axis travel mechanism connects a microprocessor system respectively；Under the control of described microprocessor system, described automatic correcting mechanism three-dimensional moves, and described laser aid moves to its laser beam sent and is positioned at the position that the axis of described support tubing is vertical.
Described fixture is arranged on described work platforms by described X-axis travel mechanism, and described fixture moves left and right setting on described work platforms；
Described Y-axis moving mechanism is arranged on described column, described Z axis travel mechanism is arranged in described Y-axis moving mechanism, described laser aid is arranged in described Z axis travel mechanism, described laser aid is successively arranged on described column by Y-axis moving mechanism, Z axis travel mechanism, described laser aid on described column front and back, move up and down setting；
Described laser aid is provided with a high sensor of survey, and downward, the signal output part of the high sensor of described survey connects described microprocessor system to the detection faces of the high sensor of described survey.
Tradition judges whether the method vertical with tubing axis is the method adopting artificial visual to laser beam, it is judged that whether the hot spot two halves part that laser beam is beaten at tubing is symmetrical, and artificial visual cost of idleness exists bigger error simultaneously.Therefore the present invention utilizes X-axis travel mechanism, Z axis travel mechanism that the focus of laser beam is positioned at support tube surfaces.Move then as Y-axis, the high sensor of survey is utilized to measure in the surface scan formula of support tubing, Y-axis is surveyed high sensor in a stroke range and is moved in tube surfaces, surveying high sensor to measure in the surface scan formula of tubing, when measuring, the position of Z axis is determined, the elemental height therefore surveying high sensor is certain, with this height for benchmark, survey high sensor scanned multiple point successively, search out peak, be the position that laser beam is vertical with tubing axis.The present invention adopts the mode automatically determining position, it is ensured that the direction of laser beam remains that in cutting process the axis with tubing intersects vertically.
Described Z axis travel mechanism is provided with a displacement transducer, and the signal output part of institute's displacement sensors connects described microprocessor system.So that according to focal variation in the course of processing, it is possible to move in real time, the position of stable focus is in support tube surfaces to be processed all the time.
The dynamic plate of described X-axis travel mechanism is provided with a θ rotation shaft unit, and described fixture connects described X-axis travel mechanism by described θ rotation shaft unit.So that described holder tubing is around θ rotation shaft unit high speed rotating, θ shaft device is arranged on the dynamic plate of linear axis X-axis simultaneously, it is possible to along linear axis feeding, it is achieved the automatic feed function in the course of processing.
The slide rail of described Y-axis moving mechanism is fixed by screws on described column, and the slide block of described Y-axis moving mechanism is provided with described Z axis travel mechanism.
The stroke of described slide block is 15mm ~ 25mm.Because the tubing of support tubing is small, caliber is typically smaller than 5mm, and in the present invention, the stroke of slide block is preferably 20mm.
Described laser aid includes laser head and be arranged on the nozzle below described laser head, and the high sensor of described survey is arranged on described laser head, the axis of the high sensor of described survey and the axis coaxle of laser head.
In order to ensure the flatness of the related components installed on work platforms and column, described work platforms adopts granite work platforms, and described column adopts granite column.And described work platforms and described column all adopt a monoblock natural granite material to make.
A kind of Laser Processing endovascular stent laser beam auto-correction method, adopts above-mentioned correcting unit to be corrected, comprises the steps:
1) support tubing to be processed is fixed by fixture, mobile X-axis travel mechanism, move left and right support tubing so that it is be positioned at the lower section of laser aid；
2) move Z axis travel mechanism, move up and down laser aid, laser beam is focused, make the focal position of laser beam be in support tube surfaces；
3) Y-axis moving mechanism is moved, movable laser aid, survey the height before and after high sensor scanning bracket tubing successively, search out height peak, be the position that laser beam is vertical with support tubing axis.
Beneficial effect: owing to adopting technique scheme, this invention ensures that the focal position of laser beam is in support tube surfaces to be processed all the time, ensure that the direction of laser beam remains that in cutting process the axis with tubing intersects vertically simultaneously.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is the part-structure axonometric chart of the present invention；
Fig. 4 is the overall structure axonometric chart of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, the present invention is expanded on further below in conjunction with being specifically illustrating.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of Laser Processing endovascular stent laser beam automatic correction device, including a work platforms 1, work platforms 1 is provided with column 2, column 2 is provided with laser aid, laser aid includes laser head 5 and is arranged on the nozzle 6 below laser head 5, work platforms 1 is provided with the fixture 81 for clamping support tubing 8, laser aid is positioned at above fixture 81, also include an automatic correcting mechanism, automatic correcting mechanism includes an X-axis travel mechanism 10, one Y-axis moving mechanism 4, one Z axis travel mechanism 3, X-axis travel mechanism 10, Y-axis moving mechanism 4, the control end of Z axis travel mechanism 3 connects a microprocessor system respectively.Under the control of microprocessor system, automatic correcting mechanism three-dimensional moves, and laser aid moves to the position that axis that its laser beam sent is positioned at support tubing 8 is vertical.
With reference to Fig. 1, fixture 81 is arranged on work platforms 1 by X-axis travel mechanism 10, and fixture 81 moves left and right setting on work platforms 1.
With reference to Fig. 3, Fig. 4, Y-axis moving mechanism 4 is arranged on column 2, Z axis travel mechanism 3 is arranged in Y-axis moving mechanism 4, laser aid is arranged in Z axis travel mechanism 3, laser aid is successively arranged on column 2 by Y-axis moving mechanism 4, Z axis travel mechanism 3, laser aid on column 2 before and after, move up and down setting.The slide rail 41 of Y-axis moving mechanism 4 is fixed by screws on column 2, and the slide block 42 of Y-axis moving mechanism 4 is provided with Z axis travel mechanism 3.The stroke of slide block is 15mm ~ 25mm.Owing to the tubing of support tubing 8 is small, the caliber of support tubing 8 is typically smaller than 5mm, and in the present invention, the stroke of slide block is preferably 20mm.The laser head 5 of laser aid utilizes keyset 43, and installing plate 44, installation side plate 45 and Z axis travel mechanism 3 are attached.
With reference to Fig. 2, laser aid is provided with a high sensor 7 of survey, surveys high sensor 7 and is arranged on laser head 5, surveys the axis of high sensor 7 and the axis coaxle of laser head 5.Surveying the detection faces of high sensor 7 downward, the signal output part surveying high sensor 7 connects microprocessor system.
Tradition judges whether the method vertical with tubing axis is the method adopting artificial visual to laser beam, it is judged that whether the hot spot two halves part that laser beam is beaten at tubing is symmetrical, and artificial visual cost of idleness exists bigger error simultaneously.Therefore the present invention utilizes X-axis travel mechanism 10, Z axis travel mechanism 3 that the focus of laser beam is positioned at support tubing 8 surface.Move then as Y-axis, the high sensor 7 of survey is utilized to measure in the surface scan formula of support tubing 8, Y-axis is surveyed high sensor 7 in a stroke range and is moved in tube surfaces, surveying high sensor 7 to measure in the surface scan formula of tubing, when measuring, the position of Z axis is determined, the elemental height therefore surveying high sensor 7 is certain, with this height for benchmark, survey high sensor 7 scanned multiple point successively, search out peak, be the position that laser beam is vertical with tubing axis.The present invention adopts the mode automatically determining position, it is ensured that the direction of laser beam remains that in cutting process the axis with tubing intersects vertically.
Z axis travel mechanism 3 is provided with a displacement transducer, and the signal output part of displacement transducer connects microprocessor system.So that according to focal variation in the course of processing, it is possible to move in real time, the position of stable focus is in support tubing 8 surface to be processed all the time.
The dynamic plate of X-axis travel mechanism 10 is provided with a θ rotation shaft unit 9, and fixture 81 connects X-axis travel mechanism 10 by θ rotation shaft unit 9.So that fixture 81 clamps tubing around θ rotation shaft unit 9 high speed rotating, θ shaft device is arranged on the dynamic plate of linear axis X-axis simultaneously, it is possible to along linear axis feeding, it is achieved the automatic feed function in the course of processing.
In order to ensure the flatness of the related components installed on work platforms 1 and column 2, work platforms 1 adopts granite work platforms, and column 2 adopts granite column.And work platforms 1 and column 2 all adopt a monoblock natural granite material to make.
A kind of Laser Processing endovascular stent laser beam auto-correction method, adopts above-mentioned correcting unit to be corrected, comprises the steps:
1) support tubing 8 to be processed is fixed by fixture 81, mobile X-axis travel mechanism 10, move left and right support tubing 8 so that it is be positioned at the lower section of laser aid.
2) move Z axis travel mechanism 3, move up and down laser aid, laser beam is focused, make the focal position of laser beam be in support tubing 8 surface.
3) Y-axis moving mechanism 4 is moved, movable laser aid, survey the height before and after high sensor 7 scanning bracket tubing 8 successively, search out height peak, be the position that laser beam is vertical with support tubing 8 axis.With reference to Fig. 2, when measuring because the position of Z axis travel mechanism is determined, therefore the elemental height surveying high sensor 7 is certain, with this height for benchmark, survey the points such as high sensor scanned a, b, c successively, search out the peak C point in figure, then this C point position is the position that laser beam is vertical with tubing axis.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (9)
1. a Laser Processing endovascular stent laser beam automatic correction device, including a work platforms, described work platforms is provided with column, described column is provided with laser aid, described work platforms is provided with the fixture for clamping support tubing, described laser aid is positioned at above described fixture, described Laser Processing endovascular stent laser beam automatic correction device also includes an automatic correcting mechanism, described automatic correcting mechanism includes an X-axis travel mechanism, one Y-axis moving mechanism, one Z axis travel mechanism, described X-axis travel mechanism, described Y-axis moving mechanism, the control end of described Z axis travel mechanism connects a microprocessor system respectively；Under the control of described microprocessor system, described automatic correcting mechanism three-dimensional moves, and described laser aid moves to its laser beam sent and is positioned at the position that the axis of described support tubing is vertical；
It is characterized in that, described fixture is arranged on described work platforms by described X-axis travel mechanism, and described fixture moves left and right setting on described work platforms；
Described Y-axis moving mechanism is arranged on described column, described Z axis travel mechanism is arranged in described Y-axis moving mechanism, described laser aid is arranged in described Z axis travel mechanism, described laser aid is successively arranged on described column by Y-axis moving mechanism, Z axis travel mechanism, described laser aid on described column front and back, move up and down setting；
Described laser aid is provided with a high sensor of survey, and downward, the signal output part of the high sensor of described survey connects described microprocessor system to the detection faces of the high sensor of described survey.
2. a kind of Laser Processing endovascular stent laser beam automatic correction device according to claim 1, it is characterised in that described Z axis travel mechanism is provided with a displacement transducer, and the signal output part of institute's displacement sensors connects described microprocessor system.
3. a kind of Laser Processing endovascular stent laser beam automatic correction device according to claim 2, it is characterized in that, the dynamic plate of described X-axis travel mechanism is provided with a θ rotation shaft unit, and described fixture connects described X-axis travel mechanism by described θ rotation shaft unit.
4. a kind of Laser Processing endovascular stent laser beam automatic correction device according to claim 1, it is characterized in that, the slide rail of described Y-axis moving mechanism is fixed by screws on described column, and the slide block of described Y-axis moving mechanism is provided with described Z axis travel mechanism.
5. a kind of Laser Processing endovascular stent laser beam automatic correction device according to claim 4, it is characterised in that the stroke of described slide block is 15mm ~ 25mm.
6. a kind of Laser Processing endovascular stent laser beam automatic correction device according to claim 5, it is characterised in that the stroke of described slide block is 20mm.
7. a kind of Laser Processing endovascular stent laser beam automatic correction device as claimed in any of claims 1 to 6, it is characterized in that, described laser aid includes laser head and is arranged on the nozzle below described laser head, the high sensor of described survey is arranged on described laser head, the axis of the high sensor of described survey and the axis coaxle of laser head.
8. a kind of Laser Processing endovascular stent laser beam automatic correction device according to claim 1, it is characterised in that described work platforms adopts granite work platforms, and described column adopts granite column；And described work platforms and described column all adopt a monoblock natural granite material to make.
9. a Laser Processing endovascular stent laser beam auto-correction method, adopts the Laser Processing endovascular stent laser beam automatic correction device of the one described in claim 1-8 any one claim to be corrected, it is characterised in that to comprise the steps:
1) support tubing to be processed is fixed by fixture, mobile X-axis travel mechanism, move left and right support tubing so that it is be positioned at the lower section of laser aid；
2) move Z axis travel mechanism, move up and down laser aid, laser beam is focused, make the focal position of laser beam be in support tube surfaces；
3) Y-axis moving mechanism is moved, movable laser aid, survey the height before and after high sensor scanning bracket tubing successively, search out height peak, be the position that laser beam is vertical with support tubing axis.
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| CN201210015713.6A CN103212798B (en) | 2012-01-19 | 2012-01-19 | A kind of Laser Processing endovascular stent laser beam automatic correction device and method |
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| CN201210015713.6A CN103212798B (en) | 2012-01-19 | 2012-01-19 | A kind of Laser Processing endovascular stent laser beam automatic correction device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103451649B (en) * | 2013-09-22 | 2016-04-13 | 浙江工贸职业技术学院 | Ball for ball valve surface laser cladding locating mechanism |
| CN103801826B (en) * | 2014-02-14 | 2016-04-27 | 中国电子科技集团公司第四十五研究所 | Laser Processing focus control, focus adjustment method and laser process equipment |
| CN105132915B (en) * | 2015-09-29 | 2017-10-17 | 浙江工贸职业技术学院 | The laser melting coating processing and positioning device of ball for ball valve inner surface |
| CN105945434A (en) * | 2016-07-15 | 2016-09-21 | 浙江大学昆山创新中心 | Five-axle cutting device of laser cutter |
| CN107098157A (en) * | 2017-04-26 | 2017-08-29 | 上海迈鹊医用机器人技术有限公司 | Heparin tube recognizes grasping system and method |
| CN109926464A (en) * | 2019-04-08 | 2019-06-25 | 合肥永升机械有限公司 | A kind of means for correcting of heavy construction structure part deformation |
| CN111001950B (en) * | 2019-12-26 | 2022-02-08 | 上海百心安生物技术股份有限公司 | Processing method and processing device of vascular stent structure |
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| DE19849872A1 (en) * | 1998-10-29 | 2000-05-11 | Techno Team Gmbh | Method for machining workpieces; involves using water jet, laser beam or plasma beam on rotatably placed workpiece in lathe |
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